Inelastic  9 Be + α scattering at 90 MeV: Whether the concept of the  9 Be structure should be changed?

A. S. Demyanova; A. A. Ogloblin; A. N. Danilov; S. V. Dmitriev; V. I. Starostin; S. A. Goncharov; T. L. Belyaeva; V. Trzaska

doi:10.1134/S0021364016170070

Inelastic ⁹Be + α scattering at 90 MeV: Whether the concept of the ⁹Be structure should be changed?

Authors: Demyanova A.S.¹, Ogloblin A.A.¹, Danilov A.N.¹, Dmitriev S.V.¹, Starostin V.I.¹, Goncharov S.A.², Belyaeva T.L.³, Trzaska V.⁴
Affiliations:
1. National Research Centre Kurchatov Institute
2. Moscow State University
3. Universidad Autonomo del Estado de Mexico
4. JYFL, Department of Physics
Issue: Vol 104, No 5 (2016)
Pages: 289-292
Section: Fields, Particles, and Nuclei
URL: https://journals.rcsi.science/0021-3640/article/view/159680
DOI: https://doi.org/10.1134/S0021364016170070
ID: 159680

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Abstract

Experimental data on inelastic ⁹Be+α scattering induced by 90-MeV α particles are analyzed. The 2.78-MeV excited state is shown to have spin–parity of I^π=1/2^- in agreement with the existing data. For the 4.70-MeV excited state, it is impossible to make an unambiguous choice between the previous value I^π = 3/2⁺, and the proposed new value I^π = 1/2⁻.